Suction apparatus for paper-machines, &amp;c.



. A. E. BNNSl SUGTION APPARATUS FOR PAPER- MAGHINES, Ew. APPLIUATIOH FILED 313.10, 1912.

1,040,126. Patented om. 1, i912,

im sem mi s ITOHNEYS lll ARTHUR EUGENIE EINES, 'O E SQUTH WNBI-IM, CGNNECTIUT.

SGTIN APPARATUSQFOR PtlPER-MHINES, @am

Specification of Letters Patent.

ica-tenten oet. i., reis.

Application filed February 10, 1h12. Serial JNO. G3,853.

To all whom it may concern." i

Be it known that l, ARTHUR EUGENE Bruns, a citizen ot' the United States, residing at South lVindharn, llVindham county, State of Connecticut, have invented certain. new and useful Improvements in Suction Apparatus for Papenlllachines, dac., oi which the following is a full, clear, and er:- aet description.

bly invention relates 'to apparatus for removing' water 'from blankets and fabrics and is of particular utility when employed in connection with paper making machines 'wherein it is necessary to remove from the so-called blanket and the pulp thereonall excess moisture. i

'lhe object of the invention, broadly speaking, is to provide a simple and effective suctionl apparatus which may be einployed to very great advantage in connection with paper melting machines.

ln the drawings, Figure l is a horizontal sectional vienT on the line g/-y of Fig. 2. Fig. 2 is a vertical sectional view on the line ai--a 'of Fig'. l.

l represents a perforated rotatable cylinder which constitutesthe blanket supporting or carryin i roll. The ends of the cylinder l are prelerably closed inby nonafotatable heads 2, one of which is seen in Fig. 1. Wit-hin rolls 3-3a which may have suitable end bearings to support the saine in such a inanner that they will occupy the proper relation tothe adjacent coperating parts. The surface of each roll iti-Sa is such as to Ineke a tight joint where the cylinder l contacts therewith.

i is an elongated rib-lile portion extend ing from end to end of the cylinder and pro jecting up into the space between theA rolls -lwa and bearing against the saine so as to ineke a substantially tight joint. The pressure ot' the rolls 23a-3a parts' should bel only such as to maire the proper joint for the purpose 'hereinafter described, leaving said rolls, however, free I .to turn.

By the arrangement thus far described,

moisture contained in the the cylinder l and bearing agjainst4 the inner wall thereof near the top are two.'

against the adjacent passage 6 in a stationary' frame or casting 7. This frame or casting preferably has two upright walls S--Sa which bear respectively against the rolls Sla and vwhich forni water spaces, which spaces may be tilled with water as liquid seal for the under side of the rolls.

10 conventionally represents a blanket arranged to travel over that part of the cylinder l bet-Ween the rolls 3-3&.

.Any suitable means may be employed to support the main fra-ine 7, said supporting means entering through the space 6 and properly engaging the frame or casting 7.

l2-g-l2 represent bolts for securing the heads 2 to the 'main frame or casting 7.

Obviously suitable clearance should be provided between the ends of the heads 2 and the cylinder 1- to permit the latter to turn with suilicient freedom, although this space should be suiiiciently snug to prevent unnecessary leakage and may, indeed, be-

packed, if desirable. j Y

llllhen suction is created within the space 6, it is obvious that a corresponding vacuum is created in the space'between the rolls and under that part of the cylinder 1 which is covered by the blanket 101;' hence; any excess blanket will be drawn.through the perforations in the main cylinder l'into the space between the rolls, and thence through the passage 5 and out through the space 6. Part of this water may flow throughpassages l1 into the aforesaid water spaces to forni the liquid seal aforesaid.- It is obvious that by this ar rangement the blanket l0 may travel freely over the cylinder l without undue wear since vthe latter will revolve very readily upon and with the rolls 3-3. The heads 2 of the cylinder are carried 'bythe cylinder and do being sustained mainly, it' not entirely, by the freely turning rolls 3-f3a.' "lhe rolls 3-3L are supported, of course, by the main frame or casting 7. It isobvious, since the suction on the blanket is confined only to the zone represented by the space between .the rolls' 3-3,' that said blanket will -be entirely free on its approach to and de-l parture from 'said Vcylinder l.

Any suitable packing means may be provided at any `desired point to prevent lealiage, the application of such merely the work of the slurilled mechanic.

indicated at 9-9to form a 4 'not sustain. the weight thereof, said weight paclrin'gs being 110 The roll v1 maybe of any desired sise and l y walltlkthickness and should.` be provided with an Ladequate number of `acrfoiations of proper size and'shape to eitectively draw the water'icrcm Vthe blanket, said pertorations being only conventionally shown herein.A

.lt should' be understood that the mechaniycal construction ot the variousl parts may be stationary -iller to close the .space between i said rolls to for-m a suction space above said filler, between said rollsand underneath that part ot' the main cylinder above and between t'he-l'atterpand .meansV for exhausting air from said space including a" suctionpassage extending through said filler and into the space between said rolls. v

2. In an apparatus'ot the character 'de scribed, a main perforated cylinder, two spaced cylinder supporting rolls located interiorly and longitudinally thereof and adjacent to each vother v,and having a rotating frictional engagement with rthe 'filler closingv thev space betwee i interior of said cylinder, a stationary l said rolls and frictionally engaged thereby and lforming a suction space between said rolls and that part of the cylinder therebetween and above the Eller, a plurality of passages extending longitudinally otsaid filler and 4communicating with said suction space, and air exhausting meansl in communication with said passages.

3. In an apparatus of the character described, a main perforated cylinder, two internally located cylinder supporting rolls spaced apart but arranged adjacent to each other, a filler toclose the space between said rolls to form a suction space above said filler, between said rolls. and underneath that part of the main cylinder above vand between the latter, means for exhausting air from'said space, and means for providing'a water seal under eachot' said rolls and within the main cylinder.

4. In an apparatus of the character described, a main supporting frame or casting,

a two rolls rotatably mounted therein paral! lel with each other and free to rotate, part of saidframe closing the space between said rolls, a perforated main cylinder supported by and revolving on said rolls,- a stationary filler carried by` said frame aiid'closiner the 'space between and beneath saidv'rolls,i`erma suction space'above said filler between x saidgrolls and beneath that part of the cylind betiifecnv said rollspand' a' suction par# sage formed in said filler between said rolls and communicating with said suction space aforesaid.

5,'1n an apparatus of the character described, a main perforated cylinder, two spaced cylinder supporting rolls located interiorly thereof and adjacent to each other l with, the interior of said cylinder, a body supported below said rolls having a filler A portion extending up and closing the space between said rolls and frict-ionally engaged thereby, and forming a suction space be4 tween said rolls and that part of the cylinder therebetween and above said filler por- "tion, a suction and draining chamber formed in said body below said filler portion and rolls, and -a passage formed in said filler portion communicating with said suction space and said suction chamber.

v6. In'an apparatus of the character de scribed a main perforated cylinder, two spacedcylinder supporting rolls located inv teriorlythereoflandadjacent to each other and having a rotatingfrietional engagement with the interior 'of said cylinder, a body supported below said rolls having a filler portion extending up and closing the space between said rolls, and forming a suction. space between said rolls and that partoiu the cylinder therebetween and above said filler portion, and water chambers toi-med in said body beneath saidrolls and on either side of said filler portion providing a water seal under each of said rolls and between said rolls and said filler portion.

7. In an apparatus ofthe character described, av main perforated cylinder, two spaced cylinder supporting rolls located interiorly thereof and adjacent to each other .and having a rotating frictional engagement with the interior of said cylinder, a body supported below said rolls having a lillcr portion extending up and closing the space between said rolls, and forming; a suction space between said rolls and that part ot the cylinder therebetween and above said filler portion, Water chambers formed in said body beneath saidrolls and on either side of said filler portion providing a water seal under each of said rolls and between said rolls and said filler portion, means for ex- :irritating rirtionul engagi l in iih tbe interior of said cylinder,l a liiody snjjiported beiow said having a.

and having a rotating frictional engagement.

hausting air from said suction space', anda ller portion extending up and .closing the space between said rolls and frctonally engaged thereby, and forming a Suction space between said rolls and that part of the cylinder therebetween and above said filler l portion, a suction and draining Chamber formed n `said body` below said filler portion :Ln-cl rolls, a passage formed in '.savd filler pontion communicating 'with .said suctionv Space and'- said suction chamber, Wat-e1 chambers :(`0rmel 1n sind vbody beneath lsad'vrolls and on either side y i l ybere.

of said ler'port-ion providing a Water'. seal -under each of Said rolls and bet-Ween saidV rolls and said fillerporton, and another passage formed in said iler portion communicating `with said suction space and said water chambers and supplying-wete? drawn through said Cylinder to Sua-id 

